Moved 4.3.c test program to class ComparableTest

because that's what the template does

src/main/java/_4/_3/ComparableTest.java

@@ -0,0 +1,14 @@
+package _4._3;
+
+public class ComparableTest {
+	public static void main(String[] args) {
+		ComparableInteger[] array = new ComparableInteger[5];
+
+		for (int i=0; i<array.length; i++) {
+			array[i] = new ComparableInteger(i);
+		}
+
+		ComparableInteger minimum = (ComparableInteger) Utils.getMinimum(array);
+		System.out.println(minimum.value); // Erwartet: 0
+	}
+}

src/main/java/_4/_3/Utils.java

@@ -17,16 +17,4 @@ public class Utils {
 		}
 		return min;
 	}
-
-	public static void main(String[] args) {
-		ComparableInteger[] array = new ComparableInteger[5];
-
-		for (int i=0; i<array.length; i++) {
-			array[i] = new ComparableInteger(i);
-		}
-
-		ComparableInteger minimum = (ComparableInteger) getMinimum(array);
-		System.out.println(minimum.value); // Erwartet: 0
-
-	}
 }